Head-support for operators&#39; instruments.



F e. DAVISONQ HEAD SUPPORT FOR OPERATORS INSTRUMEN TS.

APPLICATIDR HLED APR.27. 1915.

1,182,896. Pateiltd Ma 16, 1.916;

UNITED {STATES PATENT err-1cm;

iRANK G. nAvIsoNfoF nos'ron', MASSACHUSETTS.

HEAD-SUPPORT FOR OPERATORS INSTRUMENTS.

101m [rm/m if lino eum-,1.-

. ne 't known that ,I. FnAxKjG, Davisox,

tain new and useful Improvements in Head- Supports t'm"( )peratorsInstruments, of

which the following is a specification.

This invention relates. to means for supporting telephone receivers orthe receivers of w reless apparatus, upon the head '01 the '.opei'ato1-.and refers particularly to means whereby the ear piece or pieces, or thereceivers,nia v be adjusted more or less closely piece or to the ears ofthe operatinr or swung away 15 therefrom without having to remove theheadpiece. Devices of this character are illustrated and described .inPatents 1,087,70l and 1,1o3,833 granted to Adams- The object of thepresent invention is to improvements whereby the ear provide receiver\\'lll be automatically locked in any position to which it is moved l,or shifted. relatively to the head piece, so that the ear piece orreceiver may be held unore. or less firml, against the car of the -user,without risk of being pushed back from its adjustment and whereby theear piece or receiver may be locked in outwardl fswung position at suchtimes as the operator may desire.

i an these ends my invention consists in the"improvements which I shallnow procecd to describe and claim.

i ()t' the accompanying drawings, Figure l is a front elevation of awell-known form tion from therigl'it of Fig. 1.

of head piece. the same ha ring two car pieces or rccciversconnectedthereto by my i1n provcd locking devices. Fig. is an eleva- Fig. 3 is aview of a portion of the device, illustrating one of the zuljustments.

Similar reference characters indicate sim ilar parts in all of theviews.

The head picce illustrated in the drawings includes a well known form ofresilient band 12. having pads 13 to distribute presoperator.

sure against the sides of .the head of the Adjustably conn cted witheach end of the head picrebaml" Y is a plate 14 having: cars 15 engagingthe edges of the band 12 so i that longitudinal adjustment may beeffected to vary the operative length of the band to properly locate thereceivers relatively to the fears of the operator. As the devices ateach end of the band are the I Specification of Letters Patent.

Application filed April 27.

Patented May 16, 1916. 1915. Serial No. 24,336.

same. and as either one may be entirely The plate It is formed orprovided with 19 is pivotally con= Secured to the lower end of ears 1bto which a lever nected at 20. the lever 19 is ayoke 21 to which the earpiece or receiver 22 is pivotally connected as at 23.

plate. Ql which cooperates with the pin 16 asa clutch to positively holdthe ear piece in set position. as presently described, is

provided with a hole 25'(Fig. 2) which is slightly larger than pin 16which projects through said hole. This clutch plate is pivotallyconnected-at 26 to the upper end of lever 19. one member or the otherhaving a slot for the pivotal pin to permit the ear piece or receiver tobe shifted as indicated by comparing the full line position of Figs. 1and 3 and the dotted line position of Fig. 1. The clutch plate 24 has atop car 27 and two side cars 28 (Fig.2). Preferably a small. stop pin'29 projects from the pin 16 near the inner end of the latter.

When the head piece is in position upon the head of the operator. if thereceiver is not as close to the ear of the user as wanted, an outwardpull-upon the top ear or finger piece 27 will cause the clutch to shiftoutwardly along the pin and as soon as this l pulling operation ceases,the clutch plate will instantly swing slightly so that the walls of thehole 25 will bind upon the pin, thus automatically and positivelylocking the clutch plate and consequently locking or receiver may beautomatically and posito the head piece.

tively locked in adjusted position relatively to the head piece, thussecuring the ear piece or receiver in a much more satisfactory mannerthan when friction is depended upon to hold said device.

I claim:

1. A device of the characterdescribed, comprisinr a head piece, asupport for an ear piece or receiver bodily movable laterally relativelyto the head piece, and means for positively locking said support inadjusted position relatively to the head piece.

2. A device of the character described comprising a head piece, asupport for an ear piece or receiver bodily movable laterally relativelyto the head piece, and means for automatically and positively lockingsaid support in adjusted position relatively 3. A device of thecharacter described comprising a head piece a support for an ear pieceor receiver bodily movable laterally relatively to the head piece, andmeans for automatically and positively locking: said support in adjustedposition relatively to the head piece, means being provided whereby theholding means may be manually released when the support is to beshifted.

said clutch having, means \vherebv '4. A device of the characterdescribed comprising a head piece, a support for an ear piece orreceiver bodily movable laterally relatively tothe head piece, and anautomatic clutch for positively locking said support in adjustedposition.

o. A device of the character described,

'7. A device of the character described colnprlsing a head piece havinga rigid pin projecting therefrom, a leverconnected to said headpiececarrying an ear piece or receiver, and a clutch connected with saidlever and having an aperture for said pin, it may be manually shiftedlongitudinally. of the pin. 7

In testinmny-whereof I have affixed my signature.

FRANK G. DAVISON.

